Canon imageRUNNER C1325 Series, Руководство по обслуживанию

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Technical Explanation > Image Formation System > Controls > Image Stabilization Control
Technical Explanation > Image Formation System > Controls > Image Stabilization Control
The flow to calculate correction value for ARCDAT control
Output of density data (INT)
Registration Patch Sensor Unit
(Front,Rear)(UN31,UN32)
Main Controller PCB (UN81)
DC Controller PCB (UN04)
Reference patch pattern for
ARCDAT is created (3Patch)
Patch scanning
Output of patch pattern data
Saved as reference
data for ARCDAT
Data output(D-CON)
Density data(D-CON)
100
40
100
20
40
10
INT
DC Controller PCB (UN04)
example)
Reference data for
ARCDAT of copy pattern
Start
Main Controller PCB (UN81)
F-2-86
● ARCDAT Control (Automatic and Reciprocal Color Density Adjustment
Technology)
While reducing downtime, the ideal gradation characteristics are realized.
Control timing
1) When replacing the Drum Unit
2) At paper interval on a specified print basis (80 sheets or more)
3) At last rotation on a specified print basis (30 sheets or more)
4) At last rotation of PASCAL control or D-half control
Control description
1) Main Controller PCB outputs patch data in each color (Y, M, C, and Bk) to the DC Controller
PCB.
2) The DC Controller PCB forms patch pattern in each color (Y, M, C, and Bk) on the ITB.
(Total of 12 patterns: 3 patch patterns for each color)
3) The DC Controller PCB measures the patch pattern by the Patch Sensor Front (UN44) and
the Patch Sensor Rear (UN43) and the result is returned to the Main Controller PCB.
4) Main Controller PCB compares this measured data with the reference data for ARCDAT
control that has been backed up. The difference by comparison is reflected to the D-half
result as the offset value.